Twist stopping assembly and false twist texturing machine

Abstract

The present application relates to the technical field of false twist texturing machine, and provides a false twist texturing machine and a false twist texturing machine stop twist assembly, the stop twist assembly includes a bracket and two stop twist devices which are symmetrically arranged in a horizontal direction, two yarns are fed into the two stop twist devices to form a feed angle in the horizontal direction, the two yarns are twisted by the stop twist devices and then separated from the stop twist devices to form a feed-out angle in the horizontal direction, the feed angle is greater than the feed-out angle; the stop twist surfaces formed by the two stop twist devices for the two yarns fed in simultaneously intersect, and the horizontal distance between the two yarns is shortened or maintained during the process of being transported from the stop twist devices to the guide porcelain piece. The application avoids the yarns deviating or separating from the grooves of the stop twist devices, avoids the yarns being abnormally wound or broken, and effectively suppresses the tension fluctuation and tension peak caused by twist back transmission.

Description

Technical Field

[0001] This invention relates to the field of false twist texturing machine technology, and more specifically to anti-twist components and false twist texturing machines. Background Technology

[0002] A false-twist texturing machine is a chemical fiber processing device that processes pre-oriented or drawn yarns such as polyester and nylon (hereinafter collectively referred to as "raw yarns") into elastic yarns through false twisting. Before entering the false twisting device, the raw yarns need to be heated in the texturing hot box and then cooled before undergoing false twisting treatment. The anti-twist device is a key component in the false-twist texturing machine that controls the twist transmission and stabilizes the processing tension. Its core function is to prevent the twist generated by false twisting from being transmitted back to the upstream feeding area and to stabilize the yarn tension. The anti-twist device generates controllable friction with the yarn to form mechanical damping, cut off the twist transmission path, and lock the twist within the texturing hot box.

[0003] The false-twist texturing machine is formed by horizontally splicing multiple false-twist texturing units. Each unit forms twelve yarn feed paths along one side of the central frame, and each set of twelve yarn feed paths shares a single texturing heat box. Inside the heat box are six parallel heat rails forming a double yarn path. Each heat box requires twelve anti-twist devices. The horizontal width formed by the twelve first rollers arranged horizontally is greater than the feed width of the heat rail in the same heat box, and the horizontal width of yarn feed between two first rollers is significantly greater than the feed width of two yarns from a single heat rail in the upper heat box. Therefore, when two yarns fed by two adjacent first rollers are guided by two anti-twist devices, the horizontal distance between the two yarns needs to be reduced beforehand to facilitate smooth delivery to the heat box. In existing technology, two anti-twist devices are installed as a set above the first roller and are independently connected to each other via two separate supports. The rotating surfaces of the two anti-twist devices are arranged in parallel, resulting in a parallel local thread transport path as the yarn passes through the anti-twist devices. Even when the two independent supports are placed close together, the yarn needs to be held under tension during its transport path, which can cause the yarn to easily deviate from or even detach from the grooves of the two anti-twist discs within the anti-twist device. The anti-twist assembly, composed of the anti-twist devices and their supports, cannot suppress tension fluctuations and peaks caused by twist return, resulting in poor anti-twist performance. Furthermore, because the rotating surfaces of the traditional anti-twist devices are parallel, the yarn, after passing through and leaving the anti-twist device, can easily become entangled in the gap between the anti-twist device and the support, leading to yarn breakage or jamming of the anti-twist device. This negatively impacts the production efficiency of existing false-twist texturing machines.

[0004] In view of this, it is necessary to improve the anti-twist components in the prior art to solve the above problems. It should be noted that the above description of the background art is only for the purpose of clearly and completely explaining the technical solutions of this application and facilitating understanding by those skilled in the art. It should not be assumed that the above technical solutions are known to those skilled in the art simply because these solutions have been described in the background art section of this application. Summary of the Invention

[0005] The purpose of this invention is to disclose an anti-twist component and a false twist texturer containing the anti-twist component, which solves the problem that the yarn in the existing false twist texturer may deviate or detach from the groove of the anti-twist component, avoids abnormal entanglement or breakage of the yarn, and suppresses tension fluctuations and tension peaks caused by twist return, so as to improve the anti-twist effect of the anti-twist component on the yarn.

[0006] To achieve one of the above objectives, the present invention provides an anti-twist component, which is disposed between a first conveying device and a deformation heat box, and simultaneously guides two filaments from the first conveying device to the deformation heat box. The anti-twist assembly includes: a support and two anti-twist devices symmetrically arranged laterally in the horizontal direction. Two threads are fed into the two anti-twist devices, forming a feeding angle in the horizontal direction. After the two threads are stopped by the anti-twist devices and detached from the anti-twist devices, they form a feeding angle in the horizontal direction. The feeding angle is greater than the feeding angle. The anti-twist surfaces formed by the two anti-twist devices for the two threads fed in simultaneously intersect. After the two threads are stopped by the anti-twist devices, during the process of being transported to the guide ceramic component in the deformation heat box, the horizontal distance between the two threads is shortened or maintained.

[0007] As a further improvement of the present invention, the bracket includes: a base, two upright plates protruding from the base and forming an included angle, and anti-twist devices symmetrically arranged on the outer side of the free end formed away from the base of the upright plates; the anti-twist device includes an inner anti-twist plate, an outer anti-twist plate, a bearing, and a locking member; the inner anti-twist plate and the outer anti-twist plate together form a sleeve for receiving the bearing, the inner anti-twist plate is partially embedded parallel to a circular recessed portion formed inward from the free end, a frustum forming a pin hole is provided at the center of the circular recess, the pin hole penetrates the upright plate, and the locking member penetrates the bearing and the pin hole and is vertically fixed to the upright plate.

[0008] As a further improvement of the present invention, a guide portion with a frustum surface is formed on the circumferential outer side of the circular recess. The guide portion at least partially obscures the inner anti-twist piece laterally and gradually narrows in diameter along the direction pointing outward from the anti-twist device. The plane on the outer side of the guide portion is located inside the anti-twist surface.

[0009] As a further improvement of the present invention, a limiting groove communicating with the pin hole is formed on the opposite inner side of the upright plate, the locking member includes a bolt and a nut, the nut is restricted to rotate by the limiting groove so as to restrict the locking member from rotating relative to the upright plate; the anti-twist assembly includes two locking members, the two locking members pass through the upright plate and abut against each other.

[0010] As a further improvement of the present invention, the anti-twist assembly further includes: a reinforcing rib connecting the base and the upright plate, wherein the base, the upright plate, and the reinforcing rib are an integral structure; The inner anti-twist plate and the outer anti-twist plate overlap to form the sleeve, and the sleeve is connected to the bearing by an interference fit; the anti-twist device is a metal anti-twist device or a ceramic anti-twist device.

[0011] As a further improvement of the present invention, the two anti-twist devices symmetrically arranged on the outer side of the upright plate intersect to form an anti-twist surface angle of 15°~20°; the two upright plates protrude from the base toward the deformation heat box, and the two upright plates form a common edge.

[0012] As a further improvement of the present invention, the deformation heat box forms several wire inlets for feeding two wires simultaneously, and a wire guide ceramic component with two grooves is provided at the wire inlet. The interior of the deformation heat box is provided with several heat rails forming double wire tracks. After being twisted by anti-twisting devices symmetrically arranged on the outside of the vertical plate, the horizontal lateral distance between the two wires fed to the wire guide ceramic component is slightly greater than or equal to the horizontal lateral distance between the bottoms of the two grooves of the wire guide ceramic component.

[0013] As a further improvement of the present invention, a wire feeding path is formed between the anti-twist device and the bottom of the groove for feeding the wire into the hot rail via the wire guide ceramic; the wire path near the wire inlet forms a first entry point with the wire fed from the wire inlet, and the wire is guided by the groove of the wire guide ceramic to form a second entry point, a tangent is formed between the first entry point and the second entry point, and the wire feeding path is located above the tangent.

[0014] As a further improvement of the present invention, the thread feeding path forms an angle with the tangent, and the angle is less than or equal to 12°.

[0015] Based on the same technical concept, the present invention also provides a false-twist texturing machine, comprising: A yarn frame and a machine frame are provided, and a processing group is set on the machine frame. An operating channel is formed on the inner side of the machine frame. The processing group includes: a first conveying device, a deformation heat box, a cooling device, a false twisting device, a second conveying device, a winding device, and an anti-twist component as described in any of the foregoing inventions. The deformation heat box and the cooling device are both inclinedly arranged above the operating channel.

[0016] As a further improvement of the present invention, the false twisting texturer further includes: a shaping heat box and a third conveying device disposed between the second conveying device and the winding device; the first conveying device, the second conveying device and the third conveying device are clamping conveying mechanisms or winding conveying mechanisms.

[0017] Based on the same inventive concept, the present invention also provides a false twist texturing machine, comprising: a yarn frame, a machine frame, a processing group disposed on the machine frame, and an operating channel formed on the inner side of the machine frame; the processing group comprises: a first conveying device, a texturing heat box, a cooling device, a false twisting device, a second conveying device, a winding device, and an anti-twist component as described in the aforementioned invention, wherein the texturing heat box and the cooling device are both inclinedly disposed above the operating channel.

[0018] As a further improvement of the present invention, it also includes: a shaping heat box and a third conveying device disposed between the second conveying device and the winding device; the first conveying device, the second conveying device and the third conveying device are clamping conveying mechanisms or winding conveying mechanisms.

[0019] Compared with the prior art, the beneficial effects of the embodiments of the present invention include some or all of the following: In this application, because the feeding angle is greater than the feeding angle, the horizontal lateral distance between the two threads being simultaneously fed into the same heat rail of the deformation heat box is reduced more smoothly by the two anti-twist devices, thereby preventing the threads from deviating or detaching from the grooves of the anti-twist devices. Simultaneously, by configuring the anti-twist surfaces formed by the two anti-twist devices for the two simultaneously fed threads to intersect, the horizontal lateral distance between the two threads is shortened or maintained during their transport to the guide ceramic component in the deformation heat box after being anti-twisted by the anti-twist devices. This results in minimal change in the horizontal lateral distance between the two threads during their transport from the anti-twist devices to the guide ceramic component at the thread inlet of the deformation heat box. Consequently, the threads are less likely to be caught in the gap between the anti-twist device and the vertical plate during high-speed movement, effectively preventing abnormal tangling or breakage of the threads. This effectively suppresses tension fluctuations and tension peaks caused by twist return, significantly improving the anti-twist effect of the anti-twist devices on the threads. Attached Figure Description

[0020] Figure 1 A front view of an anti-twist assembly provided in an embodiment of the present invention, mounted on the frame of a false-twist texturing machine and located between a first conveying device and a texturing hot box; Figure 2 This is a top view of an anti-twist assembly provided in an embodiment of the present invention; Figure 3 A side view of an anti-twist assembly with two anti-twist devices omitted, provided according to an embodiment of the present invention; Figure 4 For along Figure 3 Sectional view along the middle AA direction; Figure 5 For along Figure 3 Sectional view along the BB direction; Figure 6 This is a schematic diagram of a false twisting deformation machine for an anti-twist assembly provided in an embodiment of the present invention; Figure 7 This is a side view of the first conveying device and the anti-twist assembly; Figure 8 A schematic diagram of the guide wire ceramic component at the inlet of the deformation heat box; Figure 9 for Figure 1 A magnified view of a section at point D in the middle frame; Figure 10 A partial 3D view of the wire inlet of the deformation heat box; Figure 11 This is a side view of the deformation heat box and anti-twist assembly. Detailed Implementation

[0021] The present invention will now be described in detail with reference to the embodiments shown in the accompanying drawings. However, it should be noted that these embodiments are not intended to limit the present invention. Equivalent changes or substitutions in function, method, or structure made by those skilled in the art based on these embodiments are all within the scope of protection of the present invention.

[0022] In the various embodiments of this application, the term "horizontal lateral" or "horizontal direction lateral" used to indicate spatial location refers to along... Figure 1 The direction along the X-axis. The term "vertical" or "vertical direction" used to describe spatial location refers to the direction along... Figure 1 The direction along the Z-axis. The term "longitudinal" or "longitudinal direction" used to describe spatial location refers to the direction along... Figure 1 The Y-axis is perpendicular to the plane of the paper and can point either inside or outside the paper. The " / " sign indicates "or" and represents parallel technical features.

[0023] Briefly, the present application discloses several specific embodiments of the anti-twist component 100 and the false twist texturing machine 1000 including the anti-twist component 100. A row of first conveying devices 410 horizontally arranged along the horizontal transverse direction on the frame 900 of the false twist texturing machine convey multiple silk threads in parallel to the anti-twist component 100. After being anti-twisted by the anti-twist device 140, two silk threads are simultaneously conveyed to a hot rail 310 with a double silk channel in the texturing hot box 300 to heat the silk threads by the hot rail 310. The anti-twist component 100 aims to achieve more efficient anti-twist processing for two silk threads fed simultaneously. After an anti-twist component 100 performs anti-twist processing on two silk threads simultaneously, it is conveyed from the silk thread inlet 301 to the texturing hot box 300.

[0024] Refer Figures 1 to 11 to a specific embodiment of the anti-twist component 100 of the present invention shown.

[0025] The anti-twist component 100 in this embodiment is configured in the false twist texturing machine 1000 as Figure 6 shown. Figure 1 The perspective is the perspective presented when an operator stands on the ground 4 of the operation passage 950 and observes to the right. The silk threads conveyed upward by the first conveying device 410 are guided by the wire guide 411, and every two silk threads are conveyed to the anti-twist component 100 as a group. Figure 6 A complete silk thread processing path 7 formed by the silk threads in the false twist texturing machine 1000 includes partial silk thread processing paths respectively indicated by the dotted lines 70, 71, 72, 73, 74 and 75. In each embodiment of the present application, the dotted lines 70 to 75 all represent partial silk thread conveying paths in a complete silk thread conveying path 7 and are marked with the same reference numerals. Multiple first conveying devices 410 are continuously arranged and fixed on the mounting plate 912 along the horizontal direction where the X-axis is located, and the mounting plate 912 is horizontally fixed between two side frames 910.

[0026] The anti-twist component 100 is arranged between the first conveying device 410 and the texturing hot box 300, and simultaneously guides two silk threads to be conveyed from the first conveying device 410 to the texturing hot box 300. Generally, the horizontal lateral distance between the silk threads conveyed upward by two adjacent first conveying devices 410 is significantly greater than the horizontal lateral distance between the two grooves (i.e., groove 313 and groove 314) of the wire guiding porcelain part 302. From Figure 1The yarn drawn upwards from the guide wire 411 needs to be de-twisted by the anti-twisting device 140 before being conveyed to the deformation heat box 300. The anti-twisting assembly 100 includes: a bracket and two anti-twisting devices 140 symmetrically arranged laterally in the horizontal direction. The two yarns are fed into the two anti-twisting devices 140, forming a feeding angle α in the horizontal direction. After the two yarns are de-twisted by the anti-twisting devices 140 and detached from the anti-twisting devices 140, they form a feeding angle β in the horizontal direction. The feeding angle α is greater than the feeding angle β. The aforementioned feeding angle α and feeding angle β formed by the two yarns are both angles formed along the X-axis direction when viewed from the Z-axis.

[0027] Combination Figure 1 As shown, dashed lines 71a and 71b represent the thread feeding paths that simultaneously feed two threads to the anti-twist assembly 100. The two threads are fed into the anti-twist assembly 100 at a feeding angle α. The anti-twist surfaces 145 formed by the two anti-twist devices 140 for the two simultaneously fed threads intersect. After the two threads are anti-twisted by the anti-twist devices 140, the horizontal lateral distance between the two threads is shortened or maintained during the process of being fed into the deformation heat box 300 to the guide ceramic part 302. The significant advantage of the feeding angle α being greater than the feeding angle β is that the horizontal lateral distance between the two threads being fed simultaneously into the same heat rail 310 of the deformation heat box 300 is reduced more smoothly by the two anti-twist devices 140, thereby preventing the threads from deviating from or detaching from the grooves 149 of the anti-twist device 140. In this embodiment, the anti-twist assembly 100 includes two anti-twist devices 140 that are symmetrically arranged laterally in the horizontal direction. These devices appropriately reduce the feeding angle of the two wires into the guide ceramic component 302, thus preventing the wires from deviating or detaching from the two grooves 313 and 314 of the guide ceramic component 302. After being guided by the guide magnet 302, the two wires... Figure 8 The medium wire feeding path 72c and the wire feeding path 72d are fed into the wire path 311 and wire path 312 of the hot rail 310 in a nearly parallel manner, thereby ensuring that the wire can fit as close as possible to the bottom of the wire path 311 and wire path 312, so as to improve the heating effect of the hot rail 310 on the wire.

[0028] Combination Figure 2As shown, the twist stopper 140 in the present application is a metal twist stopper or a ceramic twist stopper. As an optional method, when a metal twist stopper is selected, the twist stopper 140 includes a circular inner twist piece 142 and an outer twist piece 141 made of stainless steel or titanium alloy. The inner twist piece 142 forms convex teeth 1421 protruding outwardly towards the outer twist piece 141, and the outer twist piece 141 forms convex teeth 1421 protruding inwardly towards the inner twist piece 142. The convex teeth 1411 and the convex teeth 1421 are interlaced and engaged, and the silk thread forms a groove bottom 148 for the silk thread to wind around on the circumferential outer side of the convergence point where the convex teeth 1411 and the convex teeth 1421 intersect. An annular flange 1422 is formed on the circumferential outer side of the inner twist piece 142, and an annular flange 1412 is formed on the circumferential outer side of the outer twist piece 141. As another optional method, when a ceramic twist stopper is selected, the outer twist piece 141 and the inner twist piece 142 can be regarded as an integral structure, and a groove (not shown) for the silk thread to wind around is formed on the circumferential outer side. The metal twist stopper or the ceramic twist stopper is provided with a bearing 130 along the axial direction where the outer side direction F1 or the outer side direction F2 is located in Figure 2 the middle, and the bearing 130 is embedded inside the sleeve 144 so that the two twist stoppers 140 symmetrically arranged on both sides of the vertical plate can rotate relative to the vertical plate. Optionally, the bearing 130 includes an inner ring (not labeled), an outer ring (not labeled), and rolling elements (not labeled) embedded between the inner ring and the outer ring. The bearing 130 includes but is not limited to any one of a ball bearing or a roller bearing.

[0029] Refer Figure 2 to Figure 3 As shown, the bracket includes: a base 101, two vertical plates (i.e., the vertical plate 111 and the vertical plate 112) protruding from the base 101 and forming an included angle, and a twist stopper 140 is symmetrically arranged on the outer side of the free end 113 formed by the vertical plate 111 (or the vertical plate 112) away from the base 101. Combining Figure 6 As shown, the planes where the vertical plate 111 and the vertical plate 112 are located in this embodiment are inclined with respect to the ground 4. The included angle formed by the vertical plate 111 and the vertical plate 112 faces the ground 4. The vertical plate 111 and the vertical plate 112 are horizontally and symmetrically arranged and have the same structure. The base 101 is fixedly arranged on the side cross beam 911 horizontally arranged between two side frames 910. The twist stopper 140 includes an inner twist piece 142, an outer twist piece 141, a bearing 130 and a locking member. As an optional method, the locking member includes a bolt 121 and a nut 123. The bolt 121 forms a screw rod 122 that penetrates through the twist stopper 140 and the vertical plate 111 (or the vertical plate 112) along the direction opposite to the direction F2 (or the direction F1). The nut 123 is located in the hollow portion 119 formed below the vertical plate 111 and the vertical plate 112 in the vertical direction and is screwed and fixed to the screw rod 122.

[0030] Combining Figures 3 to 5 and Figure 7 As shown, the base 101 has through holes with stepped holes 1011 on both sides of the upright plate. The fixing member 190 passes through the aforementioned through holes with stepped holes 1011 and the crossbeam 911 and is screwed and fixed with the nut 192 to reliably fix the bracket containing the two upright plates in a form parallel to the ground 4 (i.e., the horizontal plane). As a reasonable variation of the aforementioned embodiment, the aforementioned bracket can also be in a non-parallel form with the ground 4. The inner anti-twist plate 142 and the outer anti-twist plate 141 together form a sleeve 144 for receiving the bearing 130. The inner anti-twist plate 142 is partially embedded parallel to the circular recess 162 recessed inward from the free end 113. A frustum 165 forming a pin hole 164 is provided at the center of the circular recess 162. The pin hole 164 passes through the upright plates 111 and 112. The locking member passes through the bearing 130 and the pin hole 164 and is vertically fixed to the upright plates 111 and 112. Preferably, the anti-twist assembly 100 further includes a reinforcing rib 170 connecting the base 101 and the upright plate. The base 101, upright plate 111, upright plate 112, and reinforcing rib 170 are integrally formed. The overlapping portion of the inner anti-twist piece 142 and the outer anti-twist piece 141 forms a sleeve 144, and the sleeve 144 forms an interference fit connection with the bearing 130. The aforementioned inwardly recessed direction is opposite to the direction of direction F1 or direction F2. The connection position of the reinforcing rib 170 with the upright plate 111 (or upright plate 112) and the base 101 is not limited to... Figure 4 The corresponding example. As a preferred embodiment, a dust cover (not shown) may be further provided on the outer side of the outer anti-twist piece 141, and the locking member passes through the dust cover and further through the anti-twist device 140 and the upright plate 111 (or upright plate 112). The dust cover is disc-shaped, and its circular edge is bent inward to form a partially shielding ring portion of the annular folded edge 1412. The dust cover is prior art, so it is not described in detail in this embodiment.

[0031] As an alternative, the bracket in this embodiment can be formed into an integral structure by 3D printing technology. Limiting grooves 114 communicating with the pin holes 164 are formed on the opposite inner sides of the vertical plates 111 and 112. The locking member includes a bolt 121 and a nut 123. The rotation of the nut 123 is restricted by the limiting groove 114, so that the rotation of the locking member relative to the vertical plate is restricted by the limiting groove 114. The anti-twist assembly 100 includes two locking members, and the two locking members are tightened against each other after passing through the vertical plate. The advantage of the two locking members being tightened against each other after passing through the vertical plate is that, through the two locking members being tightened against each other after passing through the vertical plate, the vibrations generated by the two anti-twist devices 140 during high-speed rotation can be offset by the two mutually tightened locking members, thereby avoiding the occurrence of the anti-twist surface 145 formed by the anti-twist device 140 shaking due to vibration after long-term use. As a result, during the process of the silk thread being guided by the anti-twist device 140, the silk thread can be better anti-twist processed by the anti-twist device 140. Therefore, after leaving the anti-twist device 140, the silk thread basically moves along the two transversely symmetric anti-twist surfaces 145 and longitudinally and is fed into the texturing hot box 300.

[0032] As shown Figure 2 In this embodiment, a guiding portion 160 with a round table surface 161 is formed on the circumferential outer side of the circular recess urchased. The guiding portion 160 at least partially laterally shields the inner anti-twist piece 142 and tapers in diameter along the outer direction F1 (or direction F2) pointing to the anti-twist device 140. The plane 163 where the outer side of the guiding portion 160 is located is inside the anti-twist surface 145. The foregoing term "lateral" representing the spatial orientation is along the Figure 1 direction of the X axis in. During the process of the silk thread being guided by the anti-twist device 140 and being conveyed to the texturing hot box 300, the two silk threads gradually intersect after being guided by the anti-twist device 140, and are respectively guided to the bottoms of the two grooves of the wire guiding porcelain part 302, and finally fed into the hot rail 310. The inner anti-twist piece 142 and the vertical plate 111 (or the vertical plate 112) are integrally separated along the direction F2 (or direction F1). The part of the inner anti-twist piece 142 close to the vertical plate 111 is inside the plane 163 where the outer side of the guiding portion 160 is located. As a further preferred method, the plane 163 where the outer side of the guiding portion 160 is located is outside the annular flange 1422. The inclined surface 1413 of the outer anti-twist piece 142 and the inclined surface 1423 of the inner anti-twist piece 142 together form a groove 149, and the cross-section of the groove 149 can be V-shaped. The bottom of the groove 149 forms a groove bottom 148 for guiding the silk thread.

[0033] Through the foregoing technical solution, the silk thread can be guided by the annular guiding surface formed by the conical table surface 161, avoiding being slackened due to the fluctuation of the silk thread tension and being wound into the annular gap between the inner anti-twist piece 142 and the vertical plate 111 (or the vertical plate 112), so as to ensure that the silk thread can always be held at the bottom 148 of the groove 149, effectively avoiding the jamming of the anti-twist device 140 and effectively avoiding the interruption of the operation of the false twist texturing machine 1000.

[0034] The anti-twist surfaces 145 formed by the two anti-twist devices 140 symmetrically arranged on the outer sides of the vertical plate 111 (or the vertical plate 112) intersect to form an anti-twist surface included angle d of 15° to 20°. As an optional mode, the anti-twist surface included angle d can be any integer angle or non-integer angle such as 15°, 17°, 18° or 20°. The vertical plates 111 and 112 protrude from the base 101 towards the deformation hot box 300, and the vertical plates 111 and 112 form a common edge 110. The protruding directions of the vertical plates 111 and 112 from the base 101 generally point to the deformation hot box 300. When the vertical plates 111 and 112 are plate-like members with equal thickness, the included angle formed between the vertical plates 111 and 112 can also be regarded as the anti-twist surface included angle d.

[0035] Combined Figures 6 to 8 As shown, in this embodiment, the deformation hot box 300 forms a plurality of silk thread inlets 301 for feeding two silk threads simultaneously, and a wire guiding porcelain member 302 that forms two grooves (i.e., the groove 313 and the groove 314) is provided at the silk thread inlet 301. A plurality of hot rails 310 that form a double wire path are arranged inside the deformation hot box 300. The horizontal lateral distance w2 between the two silk threads fed to the wire guiding porcelain member 302 after being anti-twisted by the anti-twist devices 140 symmetrically arranged on the outer sides of the vertical plates is slightly greater than or equal to the horizontal lateral distance w1 between the bottom 315 of the groove 313 and the bottom 316 of the groove 314 of the wire guiding porcelain member 302. When the two silk threads fed into the same hot rail 310 move from the groove 149 of the anti-twist device 140 to the two grooves (i.e., the groove 313 and the groove 314) of the wire guiding porcelain member 302, the horizontal lateral widths of the two silk threads in the horizontal lateral direction are slightly reduced or remain equal. Thus, when the high-speed moving silk threads are fed to the two grooves of the wire guiding porcelain member 302, the change amount of the horizontal lateral distance between the two silk threads is small, even tending to zero. The advantage of the foregoing technical solution is that the jitter generated during the conveying process of the silk threads along the silk thread feeding path 72a and the silk thread feeding path 72b is further reduced and it is beneficial to reduce the tension fluctuation of the silk threads, thereby ensuring that the silk threads are fed into the deformation hot box 300 more smoothly. When the silk threads are guided by the wire guiding porcelain member 302, it is also ensured that the silk threads are not easily disengaged from the two grooves of the wire guiding porcelain member 302.

[0036] Refer Figure 9 With Figure 11 An embodiment of the corresponding twist stopper assembly 100. A thread feeding path 72a and a thread feeding path 72b for feeding the thread to the hot rail 310 through the thread guiding porcelain part 302 are formed between the twist stopper 140 and the bottom 315 of the groove 313, and between the twist stopper 140 and the bottom 316 of the groove 314. The thread path near the thread inlet 301 and the thread fed from the thread inlet 301 form a first cut-in point 316. The thread is guided by the groove 313 and the groove 314 of the thread guiding porcelain part 302 to form a second cut-in point 317. A tangent 360 is formed between the first cut-in point 316 and the second cut-in point 317. The thread feeding path 72 is located above the tangent 360. The thread feeding path 72 and the tangent 360 form an included angle E, and the included angle E is less than or equal to 12°. The included angle E is formed in Figure 11 the vertical plane jointly defined by the Y-axis and the Z-axis in. Optionally, the included angle E can be any integer angle or non-integer angle such as 1°, 3°, 5°, 10°, 12°, etc. By setting the included angle E to be less than or equal to 12°, it is beneficial to feed the thread into the texturing hot box 300 more smoothly, thereby avoiding the thread jitter during the process of feeding the thread into the texturing hot box 300 and heating in the texturing hot box 300, so as to facilitate the thread to adhere to the hot rail 310, so that the thread can be better heated, which is beneficial to the subsequent dyeing of the thread, avoiding color difference after the thread is dyed, and is beneficial to improving the color fastness of the thread.

[0037] In summary, the twist stopper assembly 100 in each embodiment of the present application is beneficial to reducing the false twist tension of the thread, thereby effectively suppressing the tension fluctuation and tension peak caused by the twist back transmission, making the false twist tension at the thread inlet 301 of the texturing hot box 300 more uniform. The lower and stable tension can reduce fiber wear and fatigue, significantly reduce the incidence of hairiness and broken filaments, and improve the appearance and quality of the finished thread. At the same time, since the feeding included angle a is greater than the feeding-out included angle b, the horizontal lateral distance between the two threads simultaneously fed to the two thread paths of the same hot rail 310 of the texturing hot box 300 is more smoothly reduced through the two twist stoppers 140, thereby prolonging the service life of the twist stoppers 140 and effectively avoiding the thread being wound into the gap between the twist stoppers 140 and the vertical plate.

[0038] Based on the technical solutions included in the twist stopper assembly 100 in the foregoing embodiments, the present application also discloses several specific embodiments of a false twist texturing machine 1000 including the twist stopper assembly 100.

[0039] See Figure 1 、 Figure 6 And Figure 10As shown, the false twist texturer 1000 includes: a yarn frame 800, a frame 900, a processing group disposed on the frame 900, an operating channel 950 formed on the inner side of the frame 900, and a conveying device 400 for conveying yarn. In this embodiment, the conveying device 400 in the false twist texturer includes a first conveying device 410 and a second conveying device 420 in a complete yarn processing path 7. The processing group includes: a first conveying device 410, a deformation heat box 300, a cooling device 200, a false twisting device 500, a second conveying device 420, a winding device 600, and an anti-twist component 100 as described in the previous embodiment, arranged sequentially along the yarn conveying path. The deformation heat box 300 and the cooling device 200 are both inclinedly arranged above the operating channel 950, thereby reducing the overall height of the false twisting texturer 1000, reducing the volume of the false twisting texturer 1000, reducing the height requirements of the factory building, and especially shortening the conveying length of the yarn in the processing group, effectively reducing the risk of damage to the yarn during the conveying process, and reducing the phenomenon of yarn tension fluctuation caused by excessively long yarn processing path 7. In the false twisting texturer 1000 shown in this embodiment, the yarn inlet 301 of the deformation heat box 300 is lower than the yarn outlet 303, so the starting device set in the traditional false twisting texturer can be eliminated. When it is necessary to replace the spindle 820, the operator can simply stand on the ground 4 of the operating channel 950 to perform the threading operation, thereby guiding the yarn back into the texturing heat box 300. Therefore, the false twist texturing machine 1000 in this embodiment can significantly shorten the yarn raising time, thereby further simplifying the structure of the false twist texturing machine 1000, reducing the manufacturing and maintenance costs of the false twist texturing machine 1000, and having good operational convenience, which is conducive to operators operating a larger number of false twist texturing machines 1000 at the same time.

[0040] The texturing heat box 300 can be used to perform texturing heat treatment on polyester, polypropylene, spandex, nylon, or composite yarns. The frame 900 includes side frames 910, a crossbeam 920, and a central frame 930. The crossbeam 920 is located at the top and, together with the side frames 910 and the central frame 930, forms an operating channel 950 located inside the frame 900. A first conveying device 410 is disposed on the side frame 910. The cooling device 200 and the texturing heat box 300 are both inclinedly disposed on the top of the crossbeam 920. A false twisting device 500 and a second conveying device 420 are vertically spaced apart on the central frame 930. A yarn rack 800 is arranged adjacent to the frame 900. The central frame 930 forms a symmetry axis 940 and can be mirror-symmetrically arranged on its left side along the symmetry axis 940. Figure 6 The structure shown.

[0041] As an optional approach, combined Figure 1 , Figure 6 and Figure 10As shown, the deformable heating box 300 can be equipped with six heating rails 310 and six corresponding heating box doors 200, and can process twelve wires simultaneously. Optionally, the deformable heating box 300 can also be configured as a heating box based on the principle of electric heating. The interior of the deformable heating box 300 is filled with insulation material. The heating rails 310 are inclined relative to the ground 4, and six movable heating box doors 320 are provided on the top operating surface facing the ground. When the heating box doors 320 are closed, a semi-open heating cavity 350 with openings at both ends is formed. The two ends of the semi-open heating cavity 350 form a wire inlet 301 and a wire outlet 303. The wires are continuously in contact with and heated at the bottom of the arc-shaped wire paths 311 and 312 formed by the heating rails 310.

[0042] As the wires move along the bottom of wire guides 311 and 312, they adhere to the bottom of wire guides 311 and 312 of the heat rail 310. The two wires are simultaneously fed into the deformation heating box 300 by the guide ceramic element 302 located at the wire inlet 301, and then move along... Figure 8 The dotted lines 72a and 72b indicate the thread transport path, which moves along the bottom of the two thread tracks (i.e., thread tracks 311 and 312) of the heating rail 310. Several exhaust pipes 340 are provided on the back side of the deformation heating box 300, opposite to the top operating surface, to exhaust the fumes generated by heating the thread in the deformation heating box 300 via an external suction device (not shown). The deformation heating box 300 forms a thread inlet 301 and a thread outlet 303. After being heated in the deformation heating box 300, the thread is guided by the thread guide 922 and then transported to the cooling device 200 to be cooled to the appropriate temperature required for the false twisting process.

[0043] Untreated yarn is drawn from the spindle 820 of the yarn rack 800 through the yarn feeding tube 810 to the tensioning device 830 and maintained at a certain tension. The yarn is further conveyed to the first conveying device 410 via the yarn cutter 840. After being twisted by the anti-twist device 140 of the anti-twist assembly 100 along the yarn processing path 7, the yarn is sequentially fed into the deformation heat box 300, cooling device 200, false twist device 500, setting heat box 550, and the third conveying device 430, and finally conveyed to the winding device 600 for winding after passing through the oiling device 620. The winding device 600 winds the elastic yarn, which has been traction, stretching, heating, cooling, false twisting deformation, and setting to form the processed spindle 610. The process of the yarn being pulled out from the spindle 820 and finally wound to form the spindle 610 forms a complete yarn processing path 7.

[0044] Figure 6The yarn in the false twist texturer 1000 forms a complete yarn processing path 7, including portions of the yarn processing path indicated by dashed lines 70, 71, 72, 73, 74, and 75. The yarn is sequentially conveyed along dashed lines 70 to 75 within a yarn processing path 7 in the false twist texturer 1000 and processed by the processing group. The false twist texturer 1000 includes sections along... Figure 1 Multiple processing groups are arranged in the X direction, where the X direction is perpendicular to the x-axis. Figure 6 The paper surface, and simultaneously perpendicular to both the Y-axis and Z-axis.

[0045] Apart from Figure 6 Besides the false-twist texturing machine 1000 with the corresponding structure shown, the false-twist texturing machine 1000 including the anti-twist component 100 can also be configured as a V-type false-twist texturing machine or an M-type false-twist texturing machine. The texturing heat box 300 is used to heat the yarn passing through the texturing heat box 300 to a set texturing temperature (e.g., 185°C, 190°C or higher), and after cooling, it is conveyed to the false-twist device 500 to perform false-twist texturing treatment. Other devices included in the false-twist texturing machine 1000, such as the yarn frame 800, the frame 900, the winding device 600, etc., are not improvements to the prior art of this application, and those skilled in the art are aware of them. The embodiments of this application have not described in detail. Optionally, when the false-twist texturing machine 1000 processes nylon (i.e., a lower concept of yarn), it can be omitted. Figure 6 The shaping heat box 550 and the third conveying device 430 are configured in the process. When the false-twist texturing machine 1000 processes polyester, polypropylene, spandex, and other yarns, the shaping heat box 550 and the third conveying device 430 can be additionally configured. The shaping heat box 550 and the third conveying device 430 are located between the second conveying device 420 and the winding device 600. Optionally, the first conveying device 410, the second conveying device 420, and the third conveying device 430 can employ a clamping conveying mechanism or a winding conveying mechanism. For example, the winding conveying mechanism can be... Figure 1 The conveying device 400 shown consists of a guide disc (not labeled) and an auxiliary roller (not labeled). The yarn is wound multiple times around the surfaces of the guide disc and the auxiliary roller, and the rotation of the guide disc vertically conveys the yarn upward to the anti-twist component 100. In this embodiment, the conveying device 400 in the false twist texturer includes a first conveying device 410, a second conveying device 420, and a third conveying device 430 in a complete yarn processing path 7. Before being wound by the winding device 600, the yarn in any of the aforementioned false twist texturers 1000 can be oiled by the oiling device 620 to facilitate subsequent winding operations. The technical solution of the anti-twist component 100 included in the aforementioned false twist texturer 1000 is shown in the various embodiments corresponding to the aforementioned anti-twist component 100, and will not be repeated here.

[0046] The detailed descriptions listed above are merely specific descriptions of feasible embodiments of the present invention, and are not intended to limit the scope of protection of the present invention. All equivalent embodiments or modifications made without departing from the spirit of the present invention should be included within the scope of protection of the present invention.

[0047] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An anti-twist assembly is disposed between the first conveying device and the deformation heat box, and simultaneously guides the two yarns from the first conveying device to the deformation heat box; Its features are, The anti-twist component includes: The support includes two anti-twist devices symmetrically arranged horizontally. Two threads are fed into the two anti-twist devices, forming a feeding angle in the horizontal direction. After the two threads are stopped by the anti-twist devices and detached from them, they form a feeding exit angle in the horizontal direction. The feeding angle is greater than the feeding exit angle. The anti-twist surfaces formed by the two anti-twist devices for the two threads fed in simultaneously intersect. After the two threads are stopped by the anti-twist devices, the horizontal distance between the two threads is shortened or maintained during the process of being transported to the guide ceramic component in the deformation heat box. The support includes: a base, two vertical plates protruding from the base and forming an angle, and anti-twist devices symmetrically arranged on the outer side of the free end formed by the vertical plates away from the base.

2. The anti-twist assembly according to claim 1, characterized in that, The anti-twist device includes an inner anti-twist plate, an outer anti-twist plate, a bearing, and a locking member; the inner anti-twist plate and the outer anti-twist plate together form a sleeve for receiving the bearing; the inner anti-twist plate is partially embedded parallel to the circular recessed part of the free end; a frustum forming a pin hole is provided at the center of the circular recess; the pin hole penetrates the vertical plate; and the locking member passes through the bearing and the pin hole and is vertically fixed to the vertical plate.

3. The anti-twist assembly according to claim 2, characterized in that, A guide portion with a frustum surface is formed on the circumferential outer side of the circular recess. The guide portion at least partially covers the inner anti-twist piece laterally and gradually narrows in diameter along the direction pointing outward from the anti-twist device. The plane on the outer side of the guide portion is located inside the anti-twist surface.

4. The anti-twist assembly according to claim 2, characterized in that, The opposing inner side of the upright plate forms a limiting groove that communicates with the pin hole. The locking member includes a bolt and a nut. The nut is restricted from rotating by the limiting groove, so that the locking member is restricted from rotating relative to the upright plate by the limiting groove. The anti-twist assembly includes two locking members that pass through the upright plate and abut against each other.

5. The anti-twist assembly according to claim 2, characterized in that, The anti-twist assembly further includes: a reinforcing rib connecting the base and the upright plate, wherein the base, the upright plate, and the reinforcing rib are an integral structure; The inner anti-twist plate and the outer anti-twist plate overlap to form the sleeve, and the sleeve is connected to the bearing by an interference fit; the anti-twist device is a metal anti-twist device or a ceramic anti-twist device.

6. The anti-twist component according to any one of claims 2 to 5, characterized in that, The two anti-twist devices symmetrically arranged on the outer side of the upright plate intersect to form an anti-twist surface angle of 15°~20°; the two upright plates protrude from the base toward the deformation heat box, and the two upright plates form a common edge.

7. The anti-twist assembly according to claim 6, characterized in that, The deformation heat box forms several wire inlets for feeding two wires simultaneously, and a wire guide ceramic component with two grooves is provided at the wire inlet. The interior of the deformation heat box is provided with several heat rails forming double wire tracks. After being twisted by anti-twist devices symmetrically arranged on the outside of the vertical plate, the horizontal lateral distance between the two wires fed to the wire guide ceramic component is slightly greater than or equal to the horizontal lateral distance between the bottoms of the two grooves of the wire guide ceramic component.

8. The anti-twist assembly according to claim 7, characterized in that, The anti-twist device and the bottom of the groove form a wire feeding path for the wire to be fed into the hot rail via the wire guide ceramic; the wire path near the wire inlet and the wire fed from the wire inlet form a first entry point, the wire is guided by the groove of the wire guide ceramic to form a second entry point, a tangent is formed between the first entry point and the second entry point, and the wire feeding path is located above the tangent.

9. The anti-twist assembly according to claim 8, characterized in that, The thread feeding path forms an angle with the tangent, and the angle is less than or equal to 12°.

10. A false-twist texturing machine, characterized in that, include: A yarn rack and a machine frame are provided, and a processing group is set on the machine frame. An operating channel is formed on the inner side of the machine frame. The processing assembly includes: a first conveying device, a deformation heat box, a cooling device, a false twisting device, a second conveying device, a winding device, and an anti-twist component as described in any one of claims 1 to 9, wherein the deformation heat box and the cooling device are both inclinedly arranged above the operating channel.

11. The false-twist texturing machine according to claim 10, characterized in that, The false twisting texturer further includes: a shaping heat box and a third conveying device disposed between the second conveying device and the winding device; the first conveying device, the second conveying device and the third conveying device adopt a clamping conveying mechanism or a winding conveying mechanism.

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